Based on real events, Francesc Boix is a Spaniard inmate in the Nazi concentration camp of Mauthausen in Austria who tries to save the evidences of the horrors committed inside its walls.

After the death of her father, a young Spanish woman discovers a partial letter. As she searches for the answers, she embarks on a journey that takes her back to Africa, where she unfolds the secrets of her family.

When reporter Dan Geraldo (Alain Chabat) arrives in Palombia to hunt for a scoop, he never suspects that he is about to make an incredible discovery... With his resourceful local guide Pablito (Jamel Debbouze), Dan has one surpris...